Dish-washer.



F. H. sTEvENs.

DISH WSHER. APPLICATION HLED MAY15, 1914.

Patented May 11, 1915.

3 sHEETs-SHEET 2`.

F. H. STEVENS.

DISH WASHER.

APPLICATION HLED MAY 15. 1914.

'Patented May 11, 1915.

3 SHEETS-SHEET 3.

' make and use the same,

the walking beam orr'icn FRANK HOYT STEVENS, OFCOLORADQ SPBINGS, COLORADO.

' DISH-WASHER.'

Speciflcation of Letters Patent.

ratented May 11, 1915.

.Application flled May 15, 1914; Serial No. 888,704.

T0 all 'whom t may concem:

Be it known that I, FRANK HoY'r S'rnv- ENs, a citizen of the United States, resicling at Colorado Springs, in the county of El Paso and State of Colorado, have invented -certain new and useful Improvements in Dish-Washers; and I do declare the following to be a full, clear, and exact description of the inventon, skilled in the art to which it appertains to reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in dish washers, my object being to provide a construction of this class adapted to thoroughly cleanse soiled dishes and at thel relatively large capacity. In fact, the ma-` chine may be made of any desired capacity.

Generally speaking, my improved con- 'struction consists'of one or more tubs arranged to reciprocate vertically, and a corresponding number of baskets arranged` to 4enter the tubs as the latter 'are raised.

Where two tubs and two baskets are em- `ployed, one of the tubs carries water for washing the dishes while the other carries water for rinsing the washed dishes. In this case the baskets are supported in such manner that the' dishes, therein are sub'- merged in the water of the tubs as the 'latter are raised. The baskets are' formed of mosh material to permit the Water to .enter with perfect freedom either for cleansing or rinsmg purposes.. y

VVhere the washing and ,rinsing fimctions are simultaneously carried on, the tub carrying the Wash water is raised, while the tub carrying the rinsingwater is Iowered,-'the two tubs being connected with the opposite extremities of' a or 'walking beam, any suitable power being employed forimparting the movement to and to the tubs.

Provision is made for connecting the tubs .through the medium of flexible hose pipes wlth a source of steam for keeping the such as will enable others shown centrally fulcrumed lever.

the tub 21 as the struction, Il will proceed to descrbe the same in detail, reference being made to the accompanying. drawing, in which is illustrated an embodiment thereof.

In this drawing, Figure 1 is a Vertical longitudinal section taken through my improved` apparatus, the construction being shown adapted for simultaneously carrying on the dish washing and dish rinsing functions. 1 1, Fig..3. Fig. 2 is a top plan view of the apparatus with the baskets 'and trays removed. Fig. 3 is a section taken on the line 3-3, Fig. 1. Fig.- 4 is a perspective View of one of the baskets. Fig. 5 is a similar view ofv one of the tubs. Fig. 6'is a view showing the single tub form of construction, the tub and frame work being shown in section.

The same reference characters indicate the same parts in all the views. I

Let the numeral designate an upright stationaryl frame work, which is rectangular in shape and provided at the top with parallel side rails 6. Centrally vfulcrumed on the lower part of the frame work as shown at central member 9 provided at its opposite extremities with 4bifurcations composed of arms 10 and 12. The arms 10 are pivotally connected as shown at 13 with links 14, the opposite extremities of the links being pivotally connectedas shown at 15, with the bottom of the tu-b 16,,which carries the Washing liquid which will consist ordinarily of hot soa'p suds,.the same being designated by the' numeral 17. The arms 12 of the walking, beam are also pivotally connected as at 20, with the bottom of a tub 21, which carries the water for rinsing the dishes..

Supported upon the side rails- 6 of the frame work are two baskets 23, one being arranged to enter the tub 16 as the latter is raised, while the other is arranged to enter latter is elevated; these baskets are each equipped at its o pposite ends with exteriorly projecting brackets 24,. the .said brackets engaging the side ralls 6 of the frame and briefly outlined my improved con- 7, is a walking beam 8, consisting of aat 18 with links 19 whose opposite extremities are pivotally connected as shown oo being readily slidable 11 thereon. Each tub is provided at its opposite ends with a channel-shaped bracket 25, the said brackets engaging vertically disposed guides 26 mounted on opposite sides of the frame. As the tubs are raised and lowered, they are kept in their' proper vertical positions by virtue of the said guides and their coperatin bracket members.

As illustrated in t e drawing, the necessary movement is primarily imparted to the tubs by means of a motor 27 whose operating shaft 28 carries a worm 29 engaging a worm wheel 30 connected to operate a shaft 31 provided with a crank arm 32 which is pivotally connected as shown at 33 with a pitman 34 .which is pivotally connected as shown at 35 with the bottom of the rinsing tub 21. As the shaft 31 is rotated, it is evident that a vertically reciprocating movement will be imparted to the tub 21, which movement will in turn impart an oscillating movement to the walking beam, whereby the two tubs 16 and 21 will be vertically reciprocated, one always moving upwardly while the other is moving downwardly. By virtue of this arrangement, but little power is required, as the tubs are identical in size and consequently approximately of the same weight at all times.

The two tubs are supplied with water from any suitable source. As illustrated in the drawing, a pipe 36 is connected with a suitable source ofhot water. One branch 37 of this pipe leads to a faucet 38; while another branch pipe 39 leads to a faucet 40. These faucets are respectively arranged directly above the two tubs 16 and 21 and their valves may be opened for the purpose of supplying hot water to the respective tubs at any time.

For the purpose of draining the tubs, they are respectively connected by means of flexible conduits 41 and 42, with a drain pipe 43, which may lead to the sewer. Furthermore, the tubs are respectively connected through the medium of flexible pipes 44 and 45, with a source of steam through the agency of a pipe 46 provided with a valve 47. Between each of the flexible pipes 41 and 42 and the drain pipe 43 is located a cut-ofl' valve 48. Under ordinary circumstances, these valves 48 will be closed, except at such times as it may be desired to drain the tubs. At the front of the machine the upper part of the frame Work is provided with an'extension 49 forming a support for a tray 50. The top of this extension is provided with side rails 51 adapted to engage the-brackets 24 o a basket 23. One of the baskets is mounte uponthis ex- ;tension at the beginning of the operation vand it may be assumed` that the dishes to be washed are placed therein. 'The tray 50- will catch any drainage from the dishes while the basket is in this position. After the basket is properly filled with a supply of dishes, it is moved along from the frame members 51 of the extension, to a position in engagement with the top rail 6 of the main frame, and into such position that the dishes therein will be submerged by the y liquid in the tub 16, as the latter is raised to the position shown in Fig. 1. As soon as the dishes are properly cleansed by virtue of their being repeatedly subjected to the action of the hot soap suds in the tub 16, the basket 23 will be moved toward the right (see Fig. 1) into a position directly above a tray 52, intowhich the drainage water fromthe dishes in the basket may pass. This basket will then be moved farther toward the right and into position to be submerged by the water in the tub 21, as the latter is raised or moved to the position indicated by dotted lines in' Fig. 1. As soon as the basket 23 has been moved from the dish washing position, another basket containing soiled dishes will be moved into place. From this it will be understood that the operation of Washing and rinsing the dishes may be simultaneously carried on. As soon as the dishes have been properly rinsed, the basket containing the washed and rinsed dishes is moved farther toward the right (see Fig. 1) or into a position directly above a third tray 53, which may receive the drainage water from the rinsed dishes. As the water in the rinsing tub is hot, the dishes Will dry by evaporation shortly after the basket 23 containing the rinsed dishes has reached the position directly above the tray 53. From this it will be understood that the washing, rinsing, and drying operation may be simultaneously and continuously carried on, making it practicable to handle practically an unlimited quantity of dishes, the work being construction shown in Fig. 6 will be employed. This is practically the same as shown in Fig. 1, except that the walking beam is dispensed with. Hence, the tub containing the Wash water, together with the corresponding parts of the Operating mechanism, will be designated by the same reference characters as 1n`the other views. The trays 50, 52'and 53 are connected with the'dram pipe 43 by pipes 54, 55 and 56, respectively. p

Having thus described my invention, what I elaim is,-

1. Ina washer, the combination with a suitable "frame, of a basket slidable longitudinally thereon supported against down- Ward movement and composed of material to allow the liquid to enter and escape freely, a tub adapted to contain liquid, and means for alternately raising ,and lowering vdetermined intervals.

3. The combination of a frame, baskets the tub to submerge the contents of the basket at predetermined intervals, substantially as described.

2. The combination with a frame, of two baskets slidable longitudinally thereon and supported against downward movement and two tubs adapted'fto respectively 'contain washing and rinsing-liquid, and means for imparting a reciprocating movement to the tubs, whereby the latter lare brought into telescopic relation with the baskets at premounted thereon and constructed to ermit liquid to enter and escape freely, liquid containing tubs arranged below and in Vertical alinement with the baskets, a walking beam whose opposite extremities are movably connected with the respective tubs, and means for imparting movement to the walking beam whereby the tubs are actuated to submerge the contents of the baskets in the liquid of the tubs at predetermined intervals,

substantially as described.

4. The combination of a frame, baskets mounted thereon and constructed to permit liquid to enter and escape freely, liquid con' w taining -tubs arranged below and 1n alinement with the baskets, a walking beam whose opposite extremities are connected with the respective tubs, and means for imparting movement to one tub and thence to the walking beam and the other tub, whereby the contents of the baskets are -submerged in the liquid of the tubs at predetermined intervals,

- and drain trays located forwardly and rearwardly of the tubs and between the'latter, substantially' as described.

5. The. combination with a frame, of baskets slidably mounted thereon, liquid containing tubs arranged below the baskets and in Vertical alinement therewith, a walking beam fulcrumed at a point between the tubs, its opposite extremities being respectively connected with the tubs, and means for imparting movement to the walking beam, whereby the tubs are successively and alternately raised and lowered, and the contents of the baskets submerged in the liquid of the tubs at predetermined intervals, substantially as described.

6. The combination with a frame, of baskets slidably mounted thereon and composed of meshmaterial to allow liquid to enter' and esca e freely, liquid containing tubs arranged' elow and in Vertical aline- 'ment with the baskets, means for reciprocating beam whereby the tubs are successively and alternately raised and lowered t o submerge the contents of the baskets m the liquid at predetermined intervals. i

8. The combination with a frame having a forwardA extension, a tray mounted thereon, other trays supported on the body of the frame and suitably spaced, baskets slidable on the frame above the plane of the trays, liquid containing tubs arranged below and .in Vertical alinement with the baskets, the

tubs and frame being equipped withmeans 'for Vertically guiding the tubs, means for. 1mparting a reciprocating movement to the tubs whereby the contents of the baskets are submerged at predetermined intervals, the baskets being movable on the frame to bring them into positions above the trays for dramage purposes, a drainage condmt and pip leading fromthe trays to said conduit, sub-.

stantially as described.

In testimony whereof I aflix my signature in presence of. two witnesses. 'FRANK HOYT STEVENS. Witnesses:

I-I. HoY'r S'rnvnns, -J. C. BUssEY. 

